What does it mean when using the z statistic to find population mean with a known...

What does it mean when using the z statistic to find population mean with a known population standard deviation using ?

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Expert Solution

With a known population standards deviation the mean has a normal Z distribution.
The formula E gives the maximum error of the estimate.
Z shows the Z score taken form the normal table.
The Z score increases the level of confidence in each interval to eliminate errors.

keosha answered 1 year ago

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